Year Percent 1994-01-01 4.00000 1995-01-01 1.83333 1996-01-01 4.50000 1997-01-01 3.10417 1998-01-01 2.37500 1999-01-01 2.50000 2000-01-01 2.50000 2001-01-01 3.25000 2002-01-01 3.25000 2003-01-01 2.87500 2004-01-01 4.35417 2005-01-01 6.06250 2006-01-01 6.25000 2007-01-01 6.25000 2008-01-01 6.25000 2009-01-01 6.25000 2010-01-01 6.25000 2011-01-01 6.25000 2012-01-01 6.25000 2013-01-01 6.25000 2014-01-01 6.25000 2015-01-01 6.25000